Letters of Interpretation | Occupational Safety and Health Administration

Letters of Interpretation

OSHA requirements are set by statute, standards, and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. Each letter constitutes OSHA's interpretation of the requirements discussed.

Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information.

These letters of interpretation and the standards they address may not apply to OSHA State Plans. State Plans are required to have standards and enforcement programs that are at least as effective as OSHA's and may have different or additional requirements. Please see OSHA-approved State Plans for more information.

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How to Request a Letter of Interpretation

Date	Title	Standard Number
03/23/1992	Safe unloading of the end dump semi-trailer
03/23/1992	Construction standards addressing excavations.	1926.651(h)
03/21/1992	Eating and drinking in area where potentially infectious material exists.	1910.1030
03/17/1992	OSHA Regulations for single family dwelling construction.	1926.11, 1926.12, 1910.12, 1926.13
03/11/1992	Definition of "establishment" for injury and illness recordkeeping.	1904 - Table of Contents
03/10/1992	Accreditation of Agencies in California	1919.1
03/10/1992	HAZWOPER requirements in the "territorial seas".	1910.120
03/10/1992	Classification of soils for providing protective systems in excavations.	1926.652(b)(1)(i)
03/06/1992	Annual 8 hour refresher training for employees who work on hazardous waste sites.	1910.120
03/05/1992	FOIA Policy-Criminal-Willful Case
03/05/1992	Scaffold Guard Rail Design
03/03/1992	Hazard Communication and Mining Operations	1910.1200
03/03/1992	Contractor shop-made extension cords.	1910.305(a)(2), 1910.403(b)(1), 1910.404(a)(2), 1910 Subpart S, 1926.403(a), 1926.403(a)(2), 1926.403(b)(1)(i), 1926.403(g), 1926.404(a)(2), 1926.405(g)(2)(v), 1926 Subpart K
03/03/1992	Interpretation of 29 CFR 1910.147 - Lockout Devices.	1910.147
03/03/1992	Use of personnel platforms suspended from cranes and derricks.	1926.550(g)
03/01/1992	General flange requirements.	1910.215
02/27/1992	Use of laminated veneer lumber in lieu of scaffold grade planks on scaffold systems	1926 Subpart L App A
02/27/1992	The need for an employer to comply with standards other than those which are enforced by OSHA.	1910.179
02/27/1992	OSHA variances and citation policy.	1905.5
02/27/1992	Handling of overloaded inbound containers.	1918.85